The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 07, 1981

Filed:

May. 30, 1979
Applicant:
Inventors:

Masashi Nagano, Sakai, JP;

Mitsuhide Isobe, Toyonaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474 82 ;
Abstract

A derailleur in which a movable member is freely movable in its forward movement in a given range with respect to a base member without being subjected to action of a return spring, whereby when a control wire is pulled by a control lever, the stroke of the pull-operation, over the free rotation range, allows the movable member to move forward and the movable member, at the terminus of its forward movement, is movable forward freely within the given range such that it may be pulled by the tension of a bicycle chain engaging with a sprocket to complete a partially completed shifting operation.


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